Remove SeparatorInset on iOS 8 UITableView for Xcode 6 iPhone Simulator

Try to create a UITableViewCell class category and add this getter

- (UIEdgeInsets)layoutMargins {
    return UIEdgeInsetsZero;
}

in iOS7 this will not be called cos there's no this property in SDK，and will not cause any crash； in iOS8 this will be called every time you use the cell

It works for me

My solution with just three lines of code:

-(UITableViewCell*)tableView:(UITableView*)tableView cellForRowAtIndexPath:(NSIndexPath*)row{
    //
    // ... your code ...
    //
    if ([cell respondsToSelector:@selector(preservesSuperviewLayoutMargins)]){
        cell.layoutMargins = UIEdgeInsetsZero;
        cell.preservesSuperviewLayoutMargins = false;
    }
    return cell;
}

Thanks Student for pointing me to the right direction with the comment "Try this self.myTableView.layoutMargins = UIEdgeInsetsZero;" This line of code will only work on iOS 8 because layoutMargins is only available from iOS 8. If I run the same code on iOS 7, it will crash.

@property(nonatomic) UIEdgeInsets layoutMargins
Description   The default spacing to use when laying out content in the view.
Availability  iOS (8.0 and later)
Declared In   UIView.h
Reference UIView Class Reference

Below is the right answer to solve this weird white space by setting the tableview layoutMargins and cell layoutMargins as UIEdgeInsetsZero if it exists (for iOS 8). And it will not crash on iOS 7 as well.

-(void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath{

    if ([tableView respondsToSelector:@selector(setSeparatorInset:)]) {
        [tableView setSeparatorInset:UIEdgeInsetsZero];
    }

    if ([tableView respondsToSelector:@selector(setLayoutMargins:)]) {
        [tableView setLayoutMargins:UIEdgeInsetsZero];
    }

   if ([cell respondsToSelector:@selector(setLayoutMargins:)]) {
        [cell setLayoutMargins:UIEdgeInsetsZero];
   }
}

See the screen shot below:-